{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x627d93aa73f6fb706b0509fca43ebd3df1fb85703536cfef9bc0587a85652821",
    "signature": "0x3e871a20beff5436023c9ea8e4f0ea7881a61136e72f5bbe3d0026a27d3144ea3bd0d45215a1b141e53bb87c2d7a75a04c4ed48ae4fe1f1e408e1a155510c5401c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}